View 74lvc2244a 1 datasheet:

INTEGRATED CIRCUITS DATA SHEET 74LVC2244A Octal buffer/line driver with 30 ? series termination resistors; 5 V input/output tolerant; 3-state Product specification 1999 Sep 30 File under Integrated Circuits, IC24 Philips Semiconductors Product specification Octal buffer/line driver with 30 ? series termination 74LVC2244A resistors; 5 V input/output tolerant; 3-state FEATURES DESCRIPTION � 5 V tolerant inputs/outputs for interfacing with 5 V logic The 74LVC2244A is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most � Wide supply voltage range of 1.2 to 3.6 V advanced CMOS compatible TTL families. � CMOS low power consumption Inputs can be driven from either 3.3 or 5 V devices. In � Direct interface with TTL levels 3-state operation, output